超短强激光作用下的CsLiB6O10晶体的光参量放大理论分析

王丽; 韩秀友; 白晓东

中国激光, 2004, 31 (12): 1441, 网络出版: 2006-06-12

超短强激光作用下的CsLiB6O10晶体的光参量放大理论分析

Analysis of Optical Parametric Amplification with CsLiB6O10 for Ultra-Short Pulse

论文大纲

王丽 ^*韩秀友白晓东

作者单位

北京工业大学应用物理系, 北京 100022

非线性光学 CsLiB6O10晶体光参量放大超短脉冲转换效率 nonlinear optics CsLiB6O10 crystal optical parametric amplification ultra-short pulse conversion efficiency

摘要

对超短强激光抽运波长为355 nm,脉冲宽度为10 ps的CsLiB6O10光参量放大器(OPA)的最佳晶体长度、能量转换效率和输出信号光脉宽进行了理论分析和数值模拟。得到了在Ip(0)=300 MW/cm2,Is(0)=5 MW/cm2,Ii(0)=0的情况下,最佳晶体长度为27.0 mm。随着抽运功率和信号光功率增大时,CsLiB6O10晶体作为光参量放大器的非线性晶体时,其作用的晶体长度变得更短。高转换效率的信号光输出取决于抽运光和初始信号光的强度及晶体长度的最佳优化值。

Abstract

Optimal crystal length, energy conversion efficiency and pulse width of output signal light of a CsLiB6O12 optical parametric amplifier that is pumped by an ultra-short high power laser with output wavelength of 355 nm and pulse width of 10 ps are theoretically analyzed and numerically simulated. It is presented that CsLiB6O10 crystal optimum length is 27.0 mm in the case of Ip(0)=300 MW/cm2, Is(0)=5 MW/cm2, Ii(0)=0. With increasing the pump power and signal power, CsLiB6O12 crystal length is shorter when it acts as nonlinear crystal of optical parametric amplifier. The signal power output of high conversion efficiency is depended on the optimum crystal lengths, pump intensity and signal power.

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王丽, 韩秀友, 白晓东. 超短强激光作用下的CsLiB6O10晶体的光参量放大理论分析[J]. 中国激光, 2004, 31(12): 1441. 王丽, 韩秀友, 白晓东. Analysis of Optical Parametric Amplification with CsLiB6O10 for Ultra-Short Pulse[J]. Chinese Journal of Lasers, 2004, 31(12): 1441.

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